S. P. Systems manufactures energy meters in all forms -- portable, panel mountable and pc communicable, with networking. These energy meters from s. P. Systems measure parameters like voltage, current and power factor, and then automatically determine values like kwh, kva, kvarh, peak lva, peak kw, hz, average kva, average lvar, average kw, harmonics [0 to 24], the, date, time. The energy meters are compact, digital power analyzers to perform comprehensive monitoring of single and three phase lt/ht electric systems. Some models of the energy meters come with relay output to activate controls, directly or through software. One energy meter can perform total of around 43 measuring functions. Features of these energy meters from s p systems include: both balanced and unbalanced loads can be measured with ct/pt ratio, fully programmable measurement possible; easy readability with backlit lcd display; thdf; and, crest factor measurement possible. Sub-stations can use a single meter instead of approximately 10 and can save similar number of cutouts on the control panels. Some models of energy meters have in-built printer facility for on the spot printouts or are programmable for automatic printouts.
